PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Poster Session
From lepton interactions to hadron and nuclear ones at high multiplicity
E.S. Kokoulina*, V. Dunun, M. Nevmerzhitsky, V. Nikitin, Y. Petukhov, V. Riadovikov, I. Rufanov, V. Volkov and A. Vorobiev
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Pre-published on: February 06, 2017
Published on: April 19, 2017
Abstract
Multiplicity data up to 200 GeV in $e^+e^-$ annihilation are described well by the two-stage model based on pQCD and suggested the phenomenological scheme of hadronization. This model confirms the fragmentation mechanism of hadronization (in vacuum). It allows to estimate mean multiplicity at 500 GeV and 1 TeV.
Gluon dominance model is the modification of this model for the description of hadronic interactions. It was realised by an inclusion of gluons. It demonstrates very strong evidence of the recombination mechanism of hadronization. In this case, the mean multiplicity of hadrons formed from a single gluon grows with energy and it exceeds the corresponding values for lepton interactions. At the same time, the region of high multiplicity is stipulated for splitting of active gluons. The excess of soft photon yield is experimentally confirmed at Nuclotron (JINR) in the interactions of the 3.5A GeV/$c$ deuteron and lithium beams with the carbon target.
DOI: https://doi.org/10.22323/1.282.0699
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